And "adult game" doesn't mean "sex all the way whenever". Some like a bit of a challenge for a change, even in a game like this. I see how this might not be for everybody, just like those games you sometimes see with tits larger than heads are not for me. No need to change them though, you can easily find something you're more comfortable with.
I think you are getting my point in a wrong sense. I never said that adult / porn game means all sex without role-play or other type of simulation. I like this game and I have to give credit to a lot of things which this game does good... but of course, i will speak against this complicated messed up way of progressing without much of guidance in the game rather on wiki. You can go few pages behind and you'll see that my major complain of this wonderful game is majorly about its pretentious approach to look smart in this type of genre. I get it, there will be type of methods from each developer to their kind of game but the issue is just it fails its own goal. I can give example of Summertime Saga here, it is a lot similar but that game is handled way better than this game. Which is funny cuz to me Summertime Saga is really average in writing and this game seems way mature in comparison of Summertime Saga in writing.
While there may be stuff that can be done with the looks the way this game is set up, somebody has to draw them. And completely different MCs will probably be unwriteable, how would they know Minami if they're not her stepbro? How the office people? I am not against the idea in general, I just doubt it is feasible.